| |
| |
| <!DOCTYPE html> |
| <!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]--> |
| <!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]--> |
| <head> |
| <meta charset="utf-8"> |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> |
| |
| <title>Content Delivery Networks — Traffic Control 1.1.4 documentation </title> |
| |
| |
| |
| |
| <link rel="shortcut icon" href="../_static/favicon.ico"/> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" /> |
| |
| |
| |
| <link rel="stylesheet" href="../_static/theme_overrides.css" type="text/css" /> |
| |
| |
| |
| <link rel="top" title="Traffic Control 1.1.4 documentation" href="../index.html"/> |
| <link rel="up" title="CDN Basics" href="index.html"/> |
| <link rel="next" title="HTTP 1.1" href="http_11.html"/> |
| <link rel="prev" title="CDN Basics" href="index.html"/> |
| |
| |
| <script src="_static/js/modernizr.min.js"></script> |
| |
| </head> |
| |
| <body class="wy-body-for-nav" role="document"> |
| |
| <div class="wy-grid-for-nav"> |
| |
| |
| <nav data-toggle="wy-nav-shift" class="wy-nav-side"> |
| <div class="wy-side-nav-search"> |
| |
| |
| |
| <a href="/" class="icon icon-home"> Traffic Control |
| |
| |
| |
| |
| <img src="../_static/tc_logo.png" class="logo" /> |
| |
| </a> |
| |
| |
| <div role="search"> |
| <form id="rtd-search-form" class="wy-form" action="../search.html" method="get"> |
| <input type="text" name="q" placeholder="Search docs" /> |
| <input type="hidden" name="check_keywords" value="yes" /> |
| <input type="hidden" name="area" value="default" /> |
| </form> |
| </div> |
| |
| |
| </div> |
| |
| <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation"> |
| |
| |
| |
| <ul class="current"> |
| <li class="toctree-l1 current"><a class="reference internal" href="index.html">CDN Basics</a><ul class="current"> |
| <li class="toctree-l2 current"><a class="current reference internal" href="">Content Delivery Networks</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="http_11.html">HTTP 1.1</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="caching_proxies.html">Caching Proxies</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="cache_revalidation.html">Cache Control Headers and Revalidation</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../overview/index.html">Traffic Control Overview</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/introduction.html">Introduction</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/traffic_ops.html">Traffic Ops</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/traffic_router.html">Traffic Router</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/traffic_monitor.html">Traffic Monitor</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/traffic_stats.html">Traffic Stats</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/traffic_portal.html">Traffic Portal</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/traffic_server.html">Traffic Server</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../overview/traffic_vault.html">Traffic Vault</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../admin/index.html">Administrator’s Guide</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../admin/traffic_ops_install.html">Installing Traffic Ops</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../admin/traffic_ops_config.html">Configuring Traffic Ops</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../admin/traffic_ops_using.html">Using Traffic Ops</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../admin/traffic_ops_extensions.html">Managing Traffic Ops Extensions</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../admin/traffic_monitor.html">Traffic Monitor Administration</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../admin/traffic_router.html">Traffic Router Administration</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../admin/traffic_stats.html">Traffic Stats Administration</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../admin/traffic_server.html">Traffic Server Administration</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../admin/traffic_vault.html">Traffic Vault Administration</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../admin/quick_howto/index.html">Quick How To Guides</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../development/index.html">Developer’s Guide</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../development/traffic_ops.html">Traffic Ops</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../development/traffic_router.html">Traffic Router</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../development/traffic_monitor.html">Traffic Monitor</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../development/traffic_stats.html">Traffic Stats</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../development/traffic_server.html">Traffic Server</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../faq/index.html">FAQ</a><ul> |
| <li class="toctree-l2"><a class="reference internal" href="../faq/general.html">General</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../faq/development.html">Development</a></li> |
| <li class="toctree-l2"><a class="reference internal" href="../faq/administration.html">Running a Traffic Control CDN</a></li> |
| </ul> |
| </li> |
| </ul> |
| <ul> |
| <li class="toctree-l1"><a class="reference internal" href="../glossary.html">Glossary</a></li> |
| </ul> |
| |
| |
| |
| </div> |
| |
| </nav> |
| |
| <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"> |
| |
| |
| <nav class="wy-nav-top" role="navigation" aria-label="top navigation"> |
| <i data-toggle="wy-nav-top" class="fa fa-bars"></i> |
| <a href="../index.html">Traffic Control</a> |
| </nav> |
| |
| |
| |
| <div class="wy-nav-content"> |
| <div class="rst-content"> |
| <div role="navigation" aria-label="breadcrumbs navigation"> |
| <ul class="wy-breadcrumbs"> |
| <li><a href="../index.html">Traffic Control 1.1.4</a> »</li> |
| |
| <li><a href="index.html">CDN Basics</a> »</li> |
| |
| <li>Content Delivery Networks</li> |
| <li class="wy-breadcrumbs-aside"> |
| |
| <a href="../_sources/basics/content_delivery_networks.txt" rel="nofollow"> View page source</a> |
| |
| </li> |
| </ul> |
| <hr/> |
| </div> |
| |
| <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> |
| |
| <a href="http_11.html" class="btn btn-neutral float-right" title="HTTP 1.1">Next <span class="fa fa-arrow-circle-right"></span></a> |
| |
| |
| <a href="index.html" class="btn btn-neutral" title="CDN Basics"><span class="fa fa-arrow-circle-left"></span> Previous</a> |
| |
| </div> |
| |
| <div role="main" class="document"> |
| |
| <div class="section" id="content-delivery-networks"> |
| <span id="index-0"></span><h1>Content Delivery Networks<a class="headerlink" href="#content-delivery-networks" title="Permalink to this headline">ΒΆ</a></h1> |
| <p>The vast majority of today’s Internet traffic is media files (often video or audio) being sent from a single source (the <em>Content Provider</em>) to many thousands or even millions of destinations (the <em>Content Consumers</em>). Content Delivery Networks are the technology that make that one-to-many distribution possible in an economical way. A Content Delivery Network (CDN) is a distributed system of servers for delivering content over HTTP. These servers are deployed in multiple locations with the goal of optimizing the delivery of content to the end users, while minimizing the traffic on the network. A CDN typically consists of the following:</p> |
| <ul> |
| <li><dl class="first docutils"> |
| <dt><strong>Caching Proxies</strong></dt> |
| <dd><p class="first last">The proxy (cache or caching proxy) is a server that both proxies the requests and caches the results for reusing.</p> |
| </dd> |
| </dl> |
| </li> |
| <li><dl class="first docutils"> |
| <dt><strong>Content Router</strong></dt> |
| <dd><p class="first last">The Content Router ensures that the end user is connected to the optimal cache for the location of the end user and content availability.</p> |
| </dd> |
| </dl> |
| </li> |
| <li><dl class="first docutils"> |
| <dt><strong>Health Protocol</strong></dt> |
| <dd><p class="first last">The Health Protocol monitors the usage of the caches and tenants in the CDN.</p> |
| </dd> |
| </dl> |
| </li> |
| <li><dl class="first docutils"> |
| <dt><strong>Configuration Management System</strong></dt> |
| <dd><p class="first last">In many cases a CDN encompasses hundreds of servers across a large geographic area. The Configuration Management System allows an operator to manage these servers.</p> |
| </dd> |
| </dl> |
| </li> |
| <li><dl class="first docutils"> |
| <dt><strong>Log File Analysis System</strong></dt> |
| <dd><p class="first last">Every transaction in the CDN gets logged. The Log File Analysis System aggregates all of the log entries from all of the servers to a central location for analysis and troubleshooting.</p> |
| </dd> |
| </dl> |
| </li> |
| </ul> |
| </div> |
| |
| |
| </div> |
| <footer> |
| |
| <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> |
| |
| <a href="http_11.html" class="btn btn-neutral float-right" title="HTTP 1.1">Next <span class="fa fa-arrow-circle-right"></span></a> |
| |
| |
| <a href="index.html" class="btn btn-neutral" title="CDN Basics"><span class="fa fa-arrow-circle-left"></span> Previous</a> |
| |
| </div> |
| |
| |
| <hr/> |
| |
| <div role="contentinfo"> |
| <p> |
| </p> |
| </div> |
| Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. |
| |
| </footer> |
| |
| </div> |
| </div> |
| |
| </section> |
| |
| </div> |
| |
| |
| |
| |
| |
| <script type="text/javascript"> |
| var DOCUMENTATION_OPTIONS = { |
| URL_ROOT:'../', |
| VERSION:'1.1.4', |
| COLLAPSE_INDEX:false, |
| FILE_SUFFIX:'.html', |
| HAS_SOURCE: true |
| }; |
| </script> |
| <script type="text/javascript" src="../_static/jquery.js"></script> |
| <script type="text/javascript" src="../_static/underscore.js"></script> |
| <script type="text/javascript" src="../_static/doctools.js"></script> |
| |
| |
| |
| |
| |
| <script type="text/javascript" src="../_static/js/theme.js"></script> |
| |
| |
| |
| |
| <script type="text/javascript"> |
| jQuery(function () { |
| SphinxRtdTheme.StickyNav.enable(); |
| }); |
| </script> |
| |
| |
| </body> |
| </html> |
